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Functional Impact Analysis for Complex Critical Infrastructure Systems

Witte, Dustin and Bach, Sylvia and Lichte, Daniel and Fiedrich, Frank and Wolf, Kai-Dietrich (2021) Functional Impact Analysis for Complex Critical Infrastructure Systems. In: Proceedings of the 31st European Safety and Reliability Conference (ESREL 2021), pp. 2291-2298. Research Publishing Services. Proceedings of the 31st European Safety and Reliability Conference (ESREL 2021), Angers, Frankreich. ISBN 978-981-18-2016-8.

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Official URL: https://rpsonline.com.sg/proceedings/9789811820168/html/280.xml

Abstract

The well-being of the population depends to a large extent on services of critical infrastructures (CIs). It is a wellknown fact that the dependencies between CIs lead to even greater impacts on society in the case of malfunctions. To assess these impacts, understand and mitigate them, it is essential to determine and possibly quantify the dependencies. The approach described here consists of three steps. First, the disruptive event for which the impacts should be analyzed is defined (e.g. a blackout). In a second step, the infrastructure system is modeled. For this purpose, the system is divided into its entities according to common CI definition. Then, the possible service levels of each entity are assessed and quantified, such as standard operation mode, emergency operation mode or breakdown. Logically linked requirements for reaching those levels are defined, either autonomously or as an external dependency (e.g. a power generator), forming a system of dependent services. In a third step, impacts of events are analyzed by degrading selected services and calculating the effects on other services according to the logically linked requirements. Uncertainties can be described by specifying probabilities for service levels. The development over time can be examined by evaluating the impacts of sequential time intervals, e.g. for a regional blackout, where more CIs will face difficulties over time.

Item URL in elib:https://elib.dlr.de/147244/
Document Type:Conference or Workshop Item (Speech)
Title:Functional Impact Analysis for Complex Critical Infrastructure Systems
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Witte, DustinBergische Universität WuppertalUNSPECIFIED
Bach, SylviaBergische Universität WuppertalUNSPECIFIED
Lichte, DanielDaniel.Lichte (at) dlr.dehttps://orcid.org/0000-0003-3314-5823
Fiedrich, FrankBergische Universität WuppertalUNSPECIFIED
Wolf, Kai-DietrichBergische Universität WuppertalUNSPECIFIED
Date:2021
Journal or Publication Title:Proceedings of the 31st European Safety and Reliability Conference (ESREL 2021)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 2291-2298
Publisher:Research Publishing Services
ISBN:978-981-18-2016-8
Status:Published
Keywords:Critical Infrastructures, Modeling, Cascading Effects, Boolean Logic, Functional Impact Analysis,Uncertainty, Uncertainty Propagation
Event Title:Proceedings of the 31st European Safety and Reliability Conference (ESREL 2021)
Event Location:Angers, Frankreich
Event Type:international Conference
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Rhein-Sieg-Kreis
Institutes and Institutions:Institute for the Protection of Terrestrial Infrastructures > Resilience – Models and Methods
Deposited By: Lichte, Dr.-Ing. Daniel
Deposited On:13 Dec 2021 13:53
Last Modified:13 Dec 2021 13:53

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